first commit

J01024 - SỐ TAM PHÂN.java

@@ -0,0 +1,21 @@
+
+import java.util.Scanner;
+public class Main {
+
+    static String check(String s){
+        for(int i=0;i<s.length();i++){
+            if("012".indexOf(s.charAt(i))==-1) return "NO";
+        }
+        return "YES";
+    }
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int t=sc.nextInt();
+        for(int i=0;i<t;i++){
+            String s=sc.next();
+            System.out.println(check(s));
+        }
+        sc.close();
+    }
+}